The Advance Series Sump is a dual reservoir and wet/dry filtration system perfect for the advanced reef aquarist. With a separate chamber for your water pump (not included) and a dual chambered sump, you have freedom to customize your own setup. Keep a refugium in one side to culture live food or separate delicate species, keep your wet/dry or Berlin system in the other side, and place in-sump equipment like protein skimmers wherever you'd like. Includes: Includes drip tray and filter pad, egg crate & light stand, 1-1/4 Inch bulkhead, 3 ft. of 1-1/4” drain hose. ADV-300, 30”L X 14”W X 16”H, 30 GALLON SUMP CAPACITY, FOR 125-225 GALLON AQUARIUMS. Requires pump, return line, and overflow box system for aquariums that are not drilled for plumbing.